Prevalence and profile of antimicrobial sensitivity of bacteria isolated from blood culture performed at private hospitals

Abstract

This study aimed at determining the etiologic profile and the antimicrobial sensitivity of the foremost microorganisms isolated from blood samples collected from in patients admitted in private hospitals in Cascavel/PR. For this purpose, the blood culture reports carried out from January 2012 to December 2014 were analyzed. Of 5059 patient records, 613 (12.12 %) indicated positive blood culture, predominantly in males (59.54 %) and in individuals over 50 years of age (70.29 %). Twenty-seven bacterial species were isolated, and Staphylococcus aureus was the most prevalent (17.94 %), followed by Staphylococcus epidermidis (16.26 %) and Klebsiella pneumoniae (14.52 %). Gram positive cocci (GPC) showed the highest sensitivity to vancomycin and minocycline, and Enterobacteriaceae and Pseudomonas aeruginosa to imipenem and meropenen. Acinetobacter baumannii showed the highest resistance to antimicrobial drugs, with intermediate sensitivity to polymyxin B and tigecycline only. This study showed that the GCP are the most prevalent bacteria in blood cultures performed in the analyzed hospitals, particularly S. aureus and S. epidermidis. The antimicrobial sensitivity test has not being a methodology regularly applied, despite being very important for the properly and correctly use of antibiotics, and for preventing the incorrect treatment and the bacterial resistance.